this Slip Clutch Can Connect To Your 4, 5 Or 6 Series Pto Shaft. The Shaft Is 1-3/8" X 6 Spline And The Hub Is Set Up For A 1-3/8" X 6 Spline Also. The Overall Length Is 7-1/4" Specifications : Gr1 Slip Clutch Male End: 1-3/8 In. X 6 Spline Female End:...